CVE-2023-22515: Atlassian Confluence Privilege Escalation and RCE
Summary
Atlassian Confluence Server and Data Center allow unauthenticated privilege escalation and remote code execution via crafted requests to the setup action.
Why It Matters
CRITICAL severity — known to be exploited in the wild（CISA KEV）；action required: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA. ；affects Atlassian Confluence Server/Data Center 8.0.0 to 8.0.4, Confluence 8.1.0 to 8.1.3, Confluence 8.2.0 to 8.2.2 and more.
Current Status
- Vulnerability status: Known exploited (CISA KEV)
- Last intelligence update: 2026-10-27 · source: NVD
- CISA KEV added: 2023-10-05 · remediation deadline: 2023-10-13
Entity Activity Timeline
- 2023-10-05 — Added to CISA KEV as known-exploited · action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.
- 2023-08-16 — NVD publication / disclosure
- 2026-10-27 — Intelligence record updated（NVD sync）
Severity
CRITICAL
CVSS Score: 10
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Known Exploited (CISA KEV)
Known Exploited Vulnerability
Added: 2023-10-05 · Remediation deadline: 2023-10-13
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check all affected Confluence instances for evidence of compromise per vendor instructions and report any positive findings to CISA.
Source Attribution
Source: NVD · Updated: 2026-10-27T00:00:00.000 · Confidence: high
Impact
Based on CVSS vector: AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
- Atlassian Confluence Server/Data Center 8.0.0 to 8.0.4 (Unknown)
- Confluence 8.1.0 to 8.1.3 (Unknown)
- Confluence 8.2.0 to 8.2.2 (Unknown)
- Confluence 8.3.0 to 8.3.1 (Unknown)
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.
Sources & Evidence
Export threat intelligence
Download an OASIS STIX 2.1 threat-intelligence bundle (JSON) for MISP / OpenCTI / TAXII import
Start Investigation
Move from reading to investigating CVE-2023-22515: Atlassian Confluence Privilege Escalation and RCE. The workspace is a structured analysis surface — not a chat — organised as:
- Question — what do you need to know about CVE-2023-22515: Atlassian Confluence Privilege Escalation and RCE?
- Evidence — assertions mapped to verifiable references.
- Timeline — events in chronological order.
- Related Entities — CVE, threat actor, campaign, malware links.
- Sources — NVD, CISA KEV, MITRE ATT&CK, vendor advisories.
- Notes — your own observations and working hypotheses.
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